City haunt making delicious pastry? (6)
I believe the answer is:
eclair
'delicious pastry?' is the definition.
(eclair is a type of pastry)
'city haunt' is the wordplay.
'city' becomes 'EC' (the City of London postcode).
'haunt' becomes 'lair' (I've seen this in another clue).
'ec'+'lair'='ECLAIR'
'making' acts as a link.
(Other definitions for eclair that I've seen before include "Long, individual cake" , "Long cream puff" , "something at teatime?" , "Lacier type of cake" , "teatime treat?" .)